Bonder circulating tank with function of double filtration

Abstract

The invention relates to a bonder circulating tank with the function of double filtration, comprising a stirring tank, a bonder returning filter, a bonder outlet filter and a bonder discharging pipe, a bonder inlet of the bonder returning filter is connected with a separator, and a bonder outlet of the bonder returning filter is communicated with the stirring tank; and the bonder outlet filter is arranged between a circulating pump and the stirring tank, and the circulating pump is connected with the bonder outlet filter through a bonder outlet pipe. Because the bonder returning filter is additionally arranged at a bonder recovering inlet and the bonder outlet filter is additionally arranged between the circulating pump and the stirring tank, the bonder circulating tank can effectively filter recovered bonder liquor flowing into the separator to prevent glass fibers from flowing into the stirring tank together with the bonder liquor; and because the bonder outlet filter is additionally arranged between the circulating pump and the stirring tank, the bonder circulating tank can ensure that the bonder liquor supplied to an overflow disc does not contain the glass fibers, thereby ensuring the qualities of glass fiber mats. In an actual using process, as long as the bonder returning filter and the bonder outlet filter are detached and cleaned regularly, the normal production can be ensured.

Description

Technical field: [0001] The invention relates to dipping equipment in the production of wet-process glass fiber mats, in particular to a binder circulation tank. Background technique: [0002] At present, the production process of glass fiber wet-laid thin mat at home and abroad includes the following steps: [0003] ①Material preparation: prepare glass fiber chopped strands, dispersant hydroxyethyl cellulose acetate, surfactant, polyvinyl acetate emulsion, thermosetting resin, KH560 coupling agent and water according to different requirements of the product. [0004] ②Slurry preparation: According to product requirements, put glass fiber chopped strands, dispersant hydroxyethyl cellulose acetate, surfactant and water into a mixing tank and stir evenly to obtain a slurry. [0005] ③Organic binder preparation: mix required chemical raw materials such as vinyl acetate emulsion, thermosetting resin KH560 coupling agent and appropriate amount of water according to product requi...

AI Technical Summary

Problems solved by technology

Because a small amount of glass fiber must be entrained in the excess glue recovered by the glue sucker 8, the recycled glue flows back into the binder circulation tank 4. As the production time accumulates, the fiber content of the glue solution in the binder circulation tank 4 will gradually increase. increase, so that the glass fiber will be transported to the impregnated mesh belt 7 with the binder circulation pump 5, resulting in uneven surface of the thin felt, which directly affects the product quality

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